Samsung QN75Q60TAF Boot Loop fixed but no picture

[Nicktronic]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

check pin 6 of ic where it go .. did it had contact at any lvds socket

See picture. It goes through a 47.5 ohm resistor and directly to Pin 35.

[lotas]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

Wiring Diagram

[Diah]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

All of these 6 pins go through the protection diodes and out to the control points.

i don't think so... NO 6 SCLK had nothings to do with any protection

output 0 and 1 yes each go to DT

[Diah]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

[lotas]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

i don't think so... NO 6 SCLK had nothings to do with any protection

output 0 and 1 yes each go to DT

I will not argue, I tell it like it is.

[Diah]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

LOL nothings to argue,, they are 2 channel Horizontal and Vertical. because the LVDS Single. IC had 8 pins. 2 GND & VCC and 4pins for data 2 for each channel. left 2 SCLK and chip select they go to test point not for any of DT

[nomoresonys]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

Go ahead and test that resistor you mention there, see if the ohms are any or much different than the rest in that box there and maybe test some of the other similar resistors on other parts of the board, see what you get.

[Nicktronic]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

Wiring Diagram

Yes, it's actually pins 61 and 62. I counted from the wrong end of the connector originally. So 35=62 and 36=61. Sorry about that..

[Nicktronic]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

Go ahead and test that resistor you mention there, see if the ohms are any or much different than the rest in that box there and maybe test some of the other similar resistors on other parts of the board, see what you get.

Tested all resistors, see picture. Two open.....

[lotas]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

Tested all resistors, see picture. Two open.....

They can be at 10kOm (pull-up to 3.3v), and at 47 Om they are through (6 lines, 6pin)

[Nicktronic]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

They can be at 10kOm (pull-up to 3.3v), and at 47 Om they are through (6 lines, 6pin)

Yes, they are 4.68Kohm, sorry, they are not open.

[lotas]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

4.68Kohm - 4.7 kOm.

[Diah]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

Yes, it's actually pins 61 and 62. I counted from the wrong end of the connector originally. So 35=62 and 36=61. Sorry about that..

i think this statement of you wrong or the diagram belong to other chassis

any way.. since now the NOR out of the circuit. please compare in Diode mode DT601 602 specialty the reading of Pins 1 & 3 for each against them self and to other pins . also at reserve probe. to make it easy each time to measure write down where are the + & -

[Nicktronic]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

i think this statement of you wrong or the diagram belong to other chassis

any way.. since now the NOR out of the circuit. please compare in Diode mode DT601 602 specialty the reading of Pins 1 & 3 for each against them self and to other pins . also at reserve probe. to make it easy each time to measure write down where are the + & -

Ok, will do.

[lotas]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

This wiring diagram is correct, it is from this chassis (from this model).

[lotas]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

Check if these pins match (6 pin(clk) with 35pin and 7pin(hold) with 36pin)
These pins can be passed through 47 ohm resistors.

[Nicktronic]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

Check if these pins match (6 pin(clk) with 35pin and 7pin(hold) with 36pin)
These pins can be passed through 47 ohm resistors.

I've already confirmed pin 6 (clk) and i will confirm pin7 (hold) tonight

[Nicktronic]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

i think this statement of you wrong or the diagram belong to other chassis

any way.. since now the NOR out of the circuit. please compare in Diode mode DT601 602 specialty the reading of Pins 1 & 3 for each against them self and to other pins . also at reserve probe. to make it easy each time to measure write down where are the + & -

If the wiring diagram @lotas provided is correct, then I believe we are dealing with pins 61 and 62, I've indicated this in the picture

[lotas]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

If the wiring diagram @lotas provided is correct, then I believe we are dealing with pins 61 and 62, I've indicated this in the picture

This is the schematic that I posted the motherboard pinouts, not the panel strips.
Panel bar 1pin - goes to the motherboard on 96 pin, and 96pin goes to 1 pin (mirror).

[Diah]

Re: Samsung QN75Q60TAF Boot Loop fixed but no picture

i am confused ... so many input.. i will stop until you provide the final check.